Multifunctional battery charger
Source: InternetPublisher:qoistoochee128 Keywords: Power charging circuit Updated: 2020/06/06
The LM317 voltage regulator forms a constant current source to provide 50mA charging current for the S01-S06AA battery box array. Each battery box is connected in series with the LED and is connected to a shunt resistor. When the battery case contains a battery, the LED lights up during charging. Each battery box is connected in parallel with the LED through a 5.1V zener tube.
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